HYDRAULIC APPARATUS FOR AGRICULTURAL VEHICLE

WIPO Patent Application WO/2022/255737

A1

The present invention relates to a hydraulic apparatus for an agricultural vehicle, comprising: an oil tank for storing hydraulic oil; a hydraulic pump for pressurizing the hydraulic oil so as to supply same to a hydraulic flow path; an oil supply pipe which is disposed on the hydraulic flow path and connects the oil tank and the hydraulic pump; an oil return pipe which is disposed on the hydraulic flow path, has one end connected to the oil tank, and guides the hydraulic oil circulated through the oil supply pipe to an oil storage tank; and an air drain pipe which has one end connected to the oil supply pipe and the other end connected to the oil return pipe, and which guides air contained in the hydraulic oil flowing through the oil supply pipe to the oil return pipe. Accordingly, the air in the hydraulic oil flowing through the oil supply pipe is returned to the oil tank through the air drain pipe, and only the hydraulic oil without air flows into a working machine or a steering unit, and thus, it is possible to prevent the occurrence of noise and vibration.

LEE JUNG UK (KR)
LEE HYEON KOO (KR)
SHIN JAI YOON (KR)
CHO HAN JOON (KR)

PCT/KR2022/007564

December 08, 2022

May 27, 2022

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LS MTRON LTD (KR)

A01B63/10; A01B69/00; B62D5/06; F15B13/042; F15B21/00

JP2004314712A	2004-11-11
JPH1094304A	1998-04-14
JPH0960609A	1997-03-04
JP2007117037A	2007-05-17
JP2016140302A	2016-08-08

HONESTY & JR PARTNERS INTELLECTUAL PROPERTY LAW GROUP (KR)

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